apache_setenv Set an Apache subprocess_env variable intapache_setenv stringvariable stringvalue boolwalk_to_top apache_setenv sets the value of the Apache environment variable specified by variable. When setting an Apache environment variable, the corresponding $_SERVER variable is not changed. ]]> apache_setenv can be paired up with apache_getenv across seperate pages or for setting variables to pass to Server Side Includes (.shtml) that have been included in PHP scripts. See also apache_getenv.